Am Sat, 16 Jan 2016 15:46:00 +0000 schrieb Samson Smith <f...@dsfd.com>:
> On Saturday, 16 January 2016 at 14:42:27 UTC, Yazan D wrote: > > On Sat, 16 Jan 2016 14:34:54 +0000, Samson Smith wrote: > > > >> [...] > > > > You can do this: > > ubyte[] b = (cast(ubyte*) &a)[0 .. int.sizeof]; > > > > It is casting the pointer to `a` to a ubyte (or byte) pointer > > and then taking a slice the size of int. > > This seems to work. Thankyou! You need to be careful with that code though. As you're taking the address of the a variable, b.ptr will point to a. If a is on the stack you must make sure you do not escape the b reference. Another option is using static arrays: ubyte[a.sizeof] b = *(cast(ubyte[a.sizeof]*)&a); Static arrays are value types. Whenever you pass b to a function it's copied and you don't have to worry about the lifetime of a. This pointer cast (int => ubyte[4]) is safe, but the inverse operation, casting from ubyte[4] to int, is not safe. For the inverse operation you'd have to use unions as shown in Yazans response.
